674 
Experiment No. 13. 
Quart mixed market milk. 
Bottle immersed in water 4 inches. 5 inches out. 
Cream line very distinct from long standing. 
The bottom milk hotter than the top. probably on account of heavy viscid 
cream on top that did not circulate. 
Water 
Milk temperature. 
Time. 
Colonies 
per loop Remarks, 
in agar. 
ature. 
Top. 
Bottom. 
°c_ 
20 
°C. 
20 
°C. 
12 
Minutes. 
3 4.000 Control. 
30 
20 
14 
5 
40 
20.5 
16 
51 
50 
21 
20 
6f 
60 
21.5 
24 
81 
TO 
22 
28 
ioi 
80 
23 
36 
12± 
86 
26 
41 
131 
Simmering. 
90 
28.5 
43 
131 
95 
35 
47 
lot 
Boiling, 
100 
44 
55 
17 
(6) 
100 
49 
60 
181 
o4,000 
100 
50 
61 
191 
100 
54 
65 
20 
(») 
100 
60 
70 
22 1 
(6) 
100 
63 
72 
23 
340 
100 
65 
74 
24 
150 
100 
70 
79 
261 
g 
100 
73 
82 
28 
100 
75 
83 
30 
13 
a About. 6 Lost. 
Experiment No. 14. 
Quart mixed market milk. 
Bottle immersed in water 4 inches. 5 inches out. 
Xo cream line. 
| Water 
! temper- 
ature. 
Milk temperature. 
Time. 
Colonies 
per loop 
in agar. 
Remarks. 
Top. Bottom. 
°C. 
0 
0 
Minutes. 
22 
13 
5, 760 
30 
15 
2 
40 
18 
4 
50 
99 
5 
60 
27 
8 
70 
32 
84 
80 
39 
10 
90 
47 
12 
95 
50 
13 
14 
Boiling. 
100 
55 
14 
8,000 
100 
60 
15 
14.000 
100 
65 
16 
4,000 
At 66 3 , scum. 
100 
70 
18 
389 
100 
73 
19 
Scum. 
